package static_demo.static静态方法;

public class Test {
    public static void main(String[] args) {
        int[] arr={1,12,3,54,2};
        String s=ArrayUtil.printArr(arr);
        System.out.println(s);
        
        double[] arr2={1.1,12.3,21.3,12.30};
        double average=ArrayUtil.getAerage(arr2);
        System.out.println(average);
    }


}
